I received this product for free to test!

I was very excited when I received the product. It was definitely easy to use, worked very quickly and gave me a nice bright smile! It definitely beat the toothpastes like Sensodyne that state that they make your teeth whiter! I felt a little discomfort with regards to the sensitivity... Never felt like that before.

Overall a good product and a great buy for the price!

The product works, gave me a noticeable white smile. Now for the negative, my teeth became super sensitive, could not even finish the entire box and had to use Sensodyne throughout the process. But on the bright side, it worked with just half the box.

I loved this product ! I was lucky enough to receive the Crest 3D Whitestrips for FREE to try and I have nothing but amazing things to say about them. I have tried all types of whitening , the dentist , mouthwash , toothpaste , strips and nothing compares to this product. I started to notice on day 3 , with whitening mouthwash and whitening toothpaste a very noticeable difference in the appearance of my teeth. I whiten my teeth once maybe twice a year and I have to say i've found my new fav product. The price is worth it ! I will buy this product in the future ! Thank you for giving me this opportunity to try this great new product :)

I find the strips a little tricky to work with, and it's hard not to let your tongue run along them while they're in your mouth, but overall I found this product very effective in delivering on the promise of whiter teeth. I would absolutely recommend this product to anyone who didn't want to spend the hundreds of dollars getting their teeth professionally whitened at the dentist.

I received this product as part of Chickadvisor's Product Review Club.

I was really excited to try out Crest 3D White Whitestrips Intensive Professional Effects because I recently quit smoking so I wanted to whiten my teeth. I have used regular whitestrips in the past, but I have never tried any of their stronger treatments. The first night I used the strips without a problem, but the second night I experienced extreme sensitivity so I decided to take a night off of treatment. I used the third strip but unfortunately experienced the same level of sensitivity that I decided to take the strip off. I have not yet completed the treatment because I personally need a longer period of time to get over the sensitivity.

My teeth are slightly whiter, but in my case I'm not sure I will get the full effects of the treatment. For the price, I think that it is a really good starting point for someone who has mild staining but does not want to spend the money at the dentist office.

This product worked well, however I didn't like how sensitive it made my teeth. I would recommend it to someone looking for a quick fix, but maybe not to someone who already experiences sensitivity as it can be uncomfortable. Overall, useful product!

this stuff is awesome! i will for sure be buying this product,the only thing is i did not like wearing it for so long,and there was a little bit of residue but all in all its great!

These work very well, although they caused my teeth to be very sensitive afterwards which I have never had before, even though I have been using Whitestrips for 8 years now.

I do have to admit that this product works. I could see results right away. However it is very uncomfortable to wear and I hate the residue that comes with it. With that being said, I would recommend it but not to anyone that gags as I had gag reflexes due to the residue.

The product works well - there's no doubt about that. I saw the difference in my teeth immediately. However it is very uncomfortable to wear and I hate the residue that comes with it.